From: Hans Hagen <j.hagen@xs4all.nl>
To: "Jairo A. del Rio" <jairoadelrio6@gmail.com>,
mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: About loading C libraries (again)
Date: Wed, 4 Nov 2020 12:44:18 +0100 [thread overview]
Message-ID: <05f82ec7-17c0-344b-e65a-fe47a0f99182@xs4all.nl> (raw)
In-Reply-To: <CAKyqqab6HGyqRJTqgb5tsc6ANDfJ6PbkKq_VhOCW63Zj_saUSA@mail.gmail.com>
On 11/4/2020 11:01 AM, Jairo A. del Rio wrote:
> Hi. I've just read in the LuaMetaTeX manual that --permitloadlib allows
> loading compiled (.so/.dll) libraries. However, when I try it using
> ConTeXt I have an error message (example below):
>
> %hello.tex
>
> \starttext
>
> \startluacode
>
> local hello = require"hellolib" -- hellolib.so
>
> context(hello.helloworld())
>
> \stopluacode
>
> \stoptext
>
> %hello.c
> #include <lua.h>
> #include <lauxlib.h>
>
> static int helloworld (lua_State *L) {
> char hello[] = "Hello world!";
> lua_pushstring(L, hello);
> return 1;
> }
>
> static const struct luaL_Reg hellolib [] = {
> {"helloworld", helloworld},
> {NULL, NULL}
> };
>
> int luaopen_hellolib (lua_State *L){
> luaL_newlib(L, hellolib);
> return 1;
> }
>
>
> error (lua loadlib): you can only load external libraries when
> --permitloadlib is given
>
>
> On the other hand, manually calling LuaMetaTeX with the ConTeXt format
> and --permitloadlib gives the expected result (in this case, a "Hello
> world!").
>
> How is the correct way to load those libraries? Thank you very much and
> sorry if my question seems to be weird.
i should add a --permitloadlib option to the context runner then
Hans
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next prev parent reply other threads:[~2020-11-04 11:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-04 10:01 Jairo A. del Rio
2020-11-04 11:44 ` Hans Hagen [this message]
2020-11-05 2:42 ` Jairo A. del Rio
2020-11-05 9:08 ` Hans Hagen
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